This is my next power bank.

The Anker Prime 27,650mAh Power Bank (250W), ₹19,999.
My Ambrane keeps a phone topped up without complaint and buckles the moment a laptop asks for real power. This is the bank built for the day both need charging at once.”
The wattage my laptop actually needs
My Ambrane caps at 100W and even that gets shared awkwardly the moment a second device joins in. The Anker pushes up to 140W down a single USB-C line, enough to charge a MacBook Pro at close to wall speed, and I want the bank in my bag to stop being the reason a work session runs on 40 percent.
A screen instead of a guess
The Ambrane has one white LED that means "some charge left," which is not information. The Anker’s display counts the percentage, the watts leaving each port and the minutes to full, so I stop unplugging a laptop early because I assumed the worst.
Two ports, both doing real work
Charge a laptop and a phone off the Ambrane and the laptop slows to a crawl while the phone barely speeds up. The Anker holds real wattage on two USB-C ports at once, so a flight with a laptop and a phone both plugged in doesn’t mean choosing which one waits.
UGREEN Nexode 20000mAh 100W, if 27,650mAh is more brick than you need to carry. Same idea, half the size, still enough for a laptop top-up.
If you buy through that link I earn a small commission. It costs you nothing and keeps the picks independent. I accept long-term review units; they never buy the pick, and I say so when a unit was loaned.